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6.2 Equation of a Circle

What is the geometric definition of a circle?

A

To find where a circle intersects the y-axis, you must set x=0\boxed{x=0}x=0​.

B
  • Substitute the line equation into the circle equation
  • Solve the resulting quadratic for xxx
  • Substitute xxx values back into the line equation to find yyy
C

Use Pythagoras' Theorem on triangle ABCABCABC: AB=AC2−r2AB = \sqrt{AC^2 - r^2}AB=AC2−r2​.

D

The set of all points a fixed distance from a fixed point.

6.2 Equation of a Circle Flashcards

  1. A Level
  2. /Maths
  3. /6.2 Equation of a Circle

Flashcards for Edexcel A Level Maths 6.2 Equation of a Circle, covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 21 cards, matched to the Edexcel A Level Maths (9MA0) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.

Flashcards